living with the lab Attaching Arduino to Boe-Bot Chassis © 2012 David Hall

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living with the lab 3 (instructor will provide aluminum plate and switches) Parts Boe-Bot parts kit Arduino board Two switches 4” x 6” aluminum plate (1/16” thick) required parts

living with the lab 4 hole locations to match

living with the lab 5 (turn chassis over and mark holes) align back of robot with edge of plate leave the same gap on both sides the plate should extend beyond the front of the robot; this is where you will mount the switches hole locations to match

living with the lab 6 Arduino mounting holes to mark leave small gap to provide clearance between outer hole and edge hole locations to match

living with the lab 7 hole locations to match leave small gap to provide clearance between holes and edges (mark hole locations with slender object through switch holes)

living with the lab 8 safety first... you must wear safety glasses!!!

living with the lab 9 punch 1/8” diameter holes (you should be able to punch all holes)

living with the lab 10 making holes in sheet metal Punching holes in sheet metal is better and safer than drilling. Drilling sheet metal can be dangerous when the drill bit diameter is greater than the sheet thickness; the workpiece and drill will be pulled toward one another when the helical web of the drill bit breaks through during drilling. When the drill bit breaks through, it will tend to grab and rotate the workpiece, potentially pulling it out of the vise. If this happens, the edges of the spinning workpiece will act like a rotating knife. NEVER hold sheet metal in your hand while drilling!! You are not authorized to drill holes in sheet metal in the ENGR 12X sequence.

living with the lab 11 assemble parts (mount plate to chassis... then Arduino to plate) put white, nylon washers on top of aluminum screw posts to prevent unwanted grounding of solder bumps on bottom of Arduino circuit board

living with the lab 12 engrave your name on robot (don’t risk losing your most valuable possession) use an engraving tool, or scratch your name into the “soft” aluminum sheet

living with the lab 13 assemble the rest of the robot (visit and look at documentation for item 28124; instructions are provided in the “Robotics with the Boe-Bot” guide) 1.think about which screws will be covered up during assembly; install these first 2.get your screws good and tight; no rickety robots 3.using two screws on opposite corners of servos is OK if they are tight enough